This commit introduces the macro "p2m_get_active_p2m" returning the
currently active (alt)p2m. The need for this macro will be shown in the
following commits.
Signed-off-by: Sergej Proskurin <prosku...@sec.in.tum.de>
Acked-by: Julien Grall <julien.gr...@arm.com>
---
Cc: Stefano Stabellini <sstabell...@kernel.org>
Cc: Julien Grall <julien.gr...@arm.com>
---
v4: Moved the introduced macro from ./xen/arch/arm/p2m.c to
./xen/include/asm-arm/p2m.h as it will be used in multiple files in the
following commits.
---
xen/include/asm-arm/p2m.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
index e8a2116081..d3467daacf 100644
--- a/xen/include/asm-arm/p2m.h
+++ b/xen/include/asm-arm/p2m.h
@@ -14,6 +14,9 @@
#define paddr_bits PADDR_BITS
+#define p2m_get_active_p2m(v) unlikely(altp2m_active(v->domain)) ? \
+ altp2m_get_altp2m(v) :
p2m_get_hostp2m(v->domain);
+
#define p2m_switch_vttbr_and_get_flags(ovttbr, nvttbr, flags) \
({ \
ovttbr = READ_SYSREG64(VTTBR_EL2); \
--
2.13.3
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